Bump camerax_version from 1.3.4 to 1.4.0 (#101)

Bumps `camerax_version` from 1.3.4 to 1.4.0.

Updates `androidx.camera:camera-camera2` from 1.3.4 to 1.4.0

Updates `androidx.camera:camera-lifecycle` from 1.3.4 to 1.4.0

Updates `androidx.camera:camera-view` from 1.3.4 to 1.4.0

---
updated-dependencies:
- dependency-name: androidx.camera:camera-camera2
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: androidx.camera:camera-lifecycle
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: androidx.camera:camera-view
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

app/build.gradle

@@ -54,7 +54,7 @@ dependencies {
     implementation 'com.google.mlkit:barcode-scanning:17.3.0'
 
     // CameraX library
-    def camerax_version = "1.3.4"
+    def camerax_version = "1.4.0"
     implementation "androidx.camera:camera-camera2:$camerax_version"
     implementation "androidx.camera:camera-lifecycle:$camerax_version"
     implementation "androidx.camera:camera-view:$camerax_version"